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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
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<style>
table th{
background-color:cadetblue;
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table th,table td{
border: 1px solid;
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tbody td{
text-align: center;
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<table width="500">
<caption>课程表</caption>
<thead>
<th colspan="2"></th>
<th>星期1</th>
<th>星期2</th>
<th>星期3</th>
<th>星期4</th>
<th>星期5</th>
</thead>
<tbody>
<tr>
<td rowspan="6">上午</td>
</tr>
<tr>
<td>一</td>
<td colspan="2">数学</td>
<td>英语</td>
<td>语文</td>
<td>政治</td>
</tr>
<tr>
<td>二</td>
<td>英语</td>
<td>语文</td>
<td>历史</td>
<td>生物</td>
<td>体育</td>
</tr>
<tr>
<td></td>
<td colspan="5">课间操</td>
</tr>
<tr>
<td>三</td>
<td>语文</td>
<td>英语</td>
<td>政治</td>
<td>历史</td>
<td>化学</td>
</tr>
<tr>
<td>四</td>
<td>化学</td>
<td>生物</td>
<td>英语</td>
<td>数学</td>
<td>历史</td>
</tr>
<tr>
<td colspan="7">午休</td>
</tr>
<tr>
<td rowspan="2">下午</td>
<td>六</td>
<td colspan="2">政治</td>
<td>英语</td>
<td>数学</td>
<td>语文</td>
</tr>
<tr>
<td>七</td>
<td>自习</td>
<td>自习</td>
<td>自习</td>
<td>自习</td>
<td>自习</td>
</tr>
<tr>
<td colspan="7">放学回家做作业</td>
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